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Finding the Fourth Proportional to 447,701.20, 670,968.60 and 181,243.60

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Solution

The fourth proportional to 447,701.20, 670,968.60 and 181,243.60 is: 271,629.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,701.20 : 670,968.60 = 181,243.60 : x
  2. Step 2: Convert to fraction form
    447,701.20/670,968.60 = 181,243.60/x
  3. Step 3: Cross multiply
    447,701.20x = 670,968.60 × 181,243.60
  4. Step 4: Simplify right side
    447,701.20x = 121,608,764,550.96
  5. Step 5: Solve for x
    x = 121,608,764,550.96/447,701.20
  6. Step 6: Final answer
    x = 271,629.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.